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49
RESULTS

COLLECTION
TOPIC atoz
Bituminous coal 23
bituminous coal 14
coal mines and mining 12
mineral industries 12
Bituminous coal industry--Law and legislation--United States. 9
Pennsylvania. Department of Environmental Resources 8
anthracite coal 8
Coal 6
Pennsylvania. Department of Mines and Mineral Industries 4
Appalachians (People) 3
Coal mines and mining -- Kentucky 3
Coal mines and mining -- West Virginia 3
Coal trade 3
Kentucky -- Social conditions 3
West Virginia -- Social conditions 3
Charbon bitumineux 2
Coal liquefaction 2
Coal miners 2
Coal miners -- Kentucky 2
Coal miners -- West Virginia 2
Theses 2
Water-gas 2
electric 2
scientific american 2
soft coal 2
Anthracite coal 1
Appalachian region, Southern 1
Asphalt 1
Asphalte 1
Bituminous Coal Medical Survey 1
Bituminous Coal Operators´┐Ż Association 1
Bituminous coal. 1
Black Heath Coal Company 1
Civil War 1
Clerks -- United States 1
Coal miners--Labor unions 1
Coal mines and mining 1
Coal mines and mining -- Accounting 1
Coal preparation 1
Franklin Delano Roosevelt 1
Gas manufacture and works 1
George Bates 1
Joel Boone 1
Labor unions -- United States 1
National Naval Medical Center 1
Porosity 1
Sulfur 1
Thermal analysis 1
United Mine Workers of America. 1
War of 1812 1
Wildcat strikes 1
american 1
american supplement 1
apparatus 1
arc 1
bituminous 1
building edition 1
cents 1
coal 1
cubic feet 1
electric motor 1
gas 1
german lloyd 1
horse power 1
long island 1
manufacturers 1
medicalheritagelibrary 1
mining 1
motor 1
munn 1
natural gas 1
north german 1
oral history 1
railroad 1
scientific 1
sewing machine 1
sheet metal 1
steam 1
submerged electric 1
ten cents 1
three years 1
tion 1
CREATOR
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